CSES - Datatähti 2023 alku - Results
Submission details
Task:Ruudukko
Sender:Kemm1706
Submission time:2024-01-11 19:00:08 +0200
Language:C++ (C++11)
Status:READY
Result:100
Feedback
groupverdictscore
#1ACCEPTED28
#2ACCEPTED33
#3ACCEPTED39
Test results
testverdicttimegroup
#1ACCEPTED0.00 s1, 2, 3details
#2ACCEPTED0.00 s1, 2, 3details
#3ACCEPTED0.00 s1, 2, 3details
#4ACCEPTED0.01 s2, 3details
#5ACCEPTED0.01 s2, 3details
#6ACCEPTED0.01 s2, 3details
#7ACCEPTED0.26 s3details
#8ACCEPTED0.29 s3details
#9ACCEPTED0.39 s3details

Compiler report

input/code.cpp: In function 'bool sosanh(item, item)':
input/code.cpp:15:7: warning: suggest explicit braces to avoid ambiguous 'else' [-Wdangling-else]
   15 |     if(a.val == b.val)
      |       ^

Code

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef vector <ll> vl;
typedef vector <vl> vvl;
const ll modd = 1e9 + 7;
struct item
{
ll val, x, y;
};
bool sosanh(item a, item b)
{
if(a.val == b.val)
if(a.x == b.x)
return a.y < b.y;
else
return a.x < b.x;
return a.val < b.val;
}
void out(vl a)
{
for(auto x : a)
cerr << x << " ";
cerr << "\n";
}
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(0); cout.tie(0);
ll n, m, i, j, k = 0, l;
cin >> n;
m = n * n;
vector <item> a(m);
queue <item> q;
item draft;
vvl ans(n, vl(n, 0));
for(i = 0; i < n; i++)
for(j = 0; j < n; j++)
{
cin >> a[k].val;
a[k].x = i;
a[k].y = j;
k++;
}
sort(a.begin(), a.end(), sosanh);
vl sx(n, 0), sy(n, 0);
i = j = 0;
while(i < m)
{
while(j < m && a[j].val == a[i].val)
{
k = a[j].x; l = a[j].y;
ans[k][l] += sx[k] + sy[l] + 1; ans[k][l] %= modd;
draft.val = ans[k][l]; draft.x = k; draft.y = l;
q.push(draft);
j++;
}
while(!q.empty())
{
draft = q.front();
q.pop();
sx[draft.x] += draft.val; sx[draft.x] %= modd;
sy[draft.y] += draft.val; sy[draft.y] %= modd;
}
i = j;
}
k = 0;
for(i = 0; i < n; i++)
for(j = 0; j < n; j++)
{
k += ans[i][j];
k %= modd;
}
cout << k;
return 0;
}

Test details

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

input
3
1 1 1
1 1 1
1 1 1

correct output
9

user output
9

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

input
3
1 2 3
6 5 4
7 8 9

correct output
135

user output
135

Test 3

Group: 1, 2, 3

Verdict: ACCEPTED

input
3
7 8 1
4 5 4
3 9 6

correct output
57

user output
57

Test 4

Group: 2, 3

Verdict: ACCEPTED

input
100
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
10000

user output
10000

Test 5

Group: 2, 3

Verdict: ACCEPTED

input
100
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

correct output
187458477

user output
187458477

Test 6

Group: 2, 3

Verdict: ACCEPTED

input
100
2995 8734 1018 2513 7971 5063 ...

correct output
964692694

user output
964692694

Test 7

Group: 3

Verdict: ACCEPTED

input
1000
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
1000000

user output
1000000

Test 8

Group: 3

Verdict: ACCEPTED

input
1000
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

correct output
229147081

user output
229147081

Test 9

Group: 3

Verdict: ACCEPTED

input
1000
520283 805991 492643 75254 527...

correct output
951147313

user output
951147313